Question

Решите пожалуйста,хочу проверить: sin7π/6

Answer 1

sin(7п/6)=sin(6п+п/6)=sin(-п/6)=-0,5

Answer 2

$\sin\frac{7\pi}{6}= \sin\frac{6\pi+\pi}{6} = \sin(\frac{6\pi}{6}+\frac{\pi}{6} )= \sin(\pi+\frac{\pi}{6} ) =-\sin\frac{\pi}{6}=-\frac{1}{2}=-0,5$